Railway truck



April 19 30. 0. s. BARROWS 1,753,105

RAILWAY TRUCK Filed June 14, 1928 '2 Sheets-Sheet 1 Donald S Barrows April 1930. D. s. BARROWS 1,753,105

RA I LWAY TRUCK Filed June 14, 1928 2 Sheets-Sheet 2 Donald Barrows Patented Apr. 1, 1930 y unrrs stares PATENT OFFICE Application filed June 14, 1828. Serial No. 285,471.

This invention relates to railway trucks bolster and cap comprising upstanding vertiand more particularly to the construct-ion of cal portions swingingly mounted on the cap the side frames, bolsters and associated parts pedestals, and connecting horizontal portions whereby lateral motion is permitted between rocking on the lower face of the end of the said bolster and the side frames. bolster.

The principal object of my invention, gen- Other objects and advantages of the invenerally considered, is the improvement in car tion' relating to the particular arrangement trucks for increasing the flexibility thereof by and construction of the various parts will bepermitting lateral motion of the bolster, said come apparent as the description proceeds.

in motion being permitted by providing a cap Referring to the drawings illustrating my for the bolster springs and swingingly mountinvention, the scope whereof is defined by the ing a bolster supporting link on said cap. appended claims.

, Another object of my invention is the pro- Figure 1 is a partial side elevation, partly vision of railway trucks formed with side in section, of a railway truck, particularly frames having bolster openings receiving showing the intermediate portions of the springs and spring caps, said spring caps compression and tension members of a side having upstanding pedestal portions, the upframe, the connecting bolster guide columns, per ends of which are curved to provide trunthe end of the bolster andthe associated connions, and suspension links with correspondnecting parts.

20 ingly curved portions engaging said trunnion Figure 2 1s a transverse sectional view of portions and swinging thereon, said links the frame shown in Figurel, the associated supporting the ends of said bolster for perbolster, spring cap and suspension member mitting limited lateral motiontiereof. being shown in side elevation. V r A further object of my invention is the pro- Figure 3 's a transverse sectional view on vision of railway trucks formed with side the line 33 of Figure 1, looking in the direcframes having bolster openings receiving tion of the arrows. springs and spring caps, said spring caps be- Figure l'is a transverse sectional view on ing desirably formed as a spring supported the line 4-4 of Figure 1, looking in the diportion, the upper face of which carries uprection of the arrows. standing pedestal portions with curved lugs Figure 5'is a plan of one end of the bolster at the upper ends thereof, a swinging member and the associated spring cap and intermediwith concavely curved ends engaging the ate suspensionlink, a portion of said bolster curved ends on the pedestals for swinging bei b k away to m clearly'ishow th thereon, those portions of the member bei t d m tween said curved ends being depressed and R f i to the receiving the corresponding ends of the bolster for permitting lateral movement thereof. A still further object of my invention is to provide a railway truck formed with a side drawings in detail, like 2 parts being designated by like reference characters, there is shown a portion of a truck comprising a side'frame 1,formed with a frame having a tension member, a compres- 3 2 ig b a tension sion member and bolster guide columns conan O S r gm e co umns 4' f necting intermediate portions of said memlttediate Portion? thereof anclspaced leave hers, bolster springs being supported by the wmdow l' i the tension member of said frame between the P embodlment the slde {fame Illustratguide colun' ns a spring ap vith colurnn en ed 1S Of the type Cle$Cl 1b$Cl Claimed ill} gagingguides supported on said springs and my Patent #15 2,'50 of December 13, 192; formed with upstanding pedestal porti ns, on a car truck, but 1t is obvious that I do not bolster formed with an intermediate aperture wishto be limitedto the embodiment in this and side pockets receiving the pedestals of the invention of such a type of frame as certain 00 cap, and a supporting member between said ofthe advantages ofthe invention may be respect to the floor or bottom web 14 by secured when utilized with frames of other types.

As more fully described in my prior patent, the side frame 1 involves auxiliary tension members 6 which cut across the lower corners of the window or bolster opening 5 and form upwardly extending convolutions which strengthen the frame and serve for in terlocking the spring plank 7 with respect thereto, said spring plank being for that purpose provided with correspondingly upwardlyextending convolutions or corrugations S. It will be noted that the width of said auxiliary tension member 6 and the corresponding corrugations in the spring plank is less than that of the spring supporting portion of the tension member and preferably corresponds with the diameter of one of the bolster springs 9, as shown in Figure 2. The auxiliary tension members also preferably terminate by merging with the spring supporting portion of the tension member short of the center thereof whereby a central flat spring supporting area is left for the central spring unit 10 of the nest of springs.

Upon referring to Figure 5 it will be seen that a preferred spring grouping involves seven spring units arranged as two rows of three spring units disposed on either side of theauxiliary tension members 6 and a single spring unit disposed between said rows and between the central springs, said rows giving a nest of springs substantially H-shaped in plan, the auxiliary tension meinl ers 6 fitting between the ends of the uprights of said H, whereby the horizontal or spring supporting area of the tension member is efnciently utilized for the purpose. Alternative spring arrangements maybe employed, if desired, some of which are disclosed in myPatent #1,652,-

808, previously referred to. g

7 Spring plates 11 and 12, constructed as disclosed in said patent, be employed, although I do not wish to be limited 'to such details. Resting on the tops of the springs or top spring plate 12, if used, is a spring cap 13, which, in the present embodiment, comprises a lower spring supported web or floor portion 14, and upstanding pedestal or end wall portions 15. The front or outer ends of said portions 15' are desirably connected by an outer wall portion 16' which braces-the walls 15 and is in turn preferably braced with a pinrality of triangular gussets 17. The end walls or pedestals 15 are preferably provided with'outstanding bolster guiding flanges 18, said flanges, or the inner on'esbeing short enough to permit the reception thereof in the widened portion 19 of the window opening 5 in order to make assembly and removal thereof possible.

The upper ends of the end walls orpedestals 15 are formed with means for swingingly mounting a suspension link or intermediate portion 33, as shown lateral motion device 20 disposed between the spring cap 13 and the corresponding ends of the associated bolster 21. For that purpose the upper edges of the walls 15 are formed with convexly curved, or cylindrical, lug or trunnion portions'22 extending inwardly beyond the walls 15 and preferably braced by flanges 23 extending along the inner surfaces of said walls to the floor 14 of the cap 13. The intermediate member or suspension link 20 comprises end arms or swingingly mounted portions 24, the upper ends of which provide bearing brace the trunnion portions 22 for swinging motion thereon. The upstanding end portions 24 of the swinging link 20 are preferably flared downwardly and strengthened along the edges thereof by outwardly extending ribs or beading 26. The purpose of the downwardly flaring of said end portions and beading 26 is to permit the desired amount of lateral swinging of said suspension link.

In order to provide for adequately supporting a bol ter of the size illustrated, the cap 13 is preferably, but not necessarily, provided with an upstanding intermediate wall or pedestal portion 27 which is preferably provided at ts upper end with a cylindrical or partially cylindrical trunnion portion 28 and the width of which increases downwardly from the upper end of the floor 14 of the cap 13, as illustrated most clearly in Figure 4. Said wall 27 is desirably braced by intermediate outstanding vertical ribs 29 and inclined ribs 30 along the edges thereof, said pedestal portion connecting with a transverse rib or flange 31 which extends across the floor 14 of the spring cap 13 and atits outer end uniteswit h the wall 16 of said cap. The link-20 is in turn formed with upstanding portions 32 lying on either side of the intermediate wall or pedestal portion 27 and connected by a concave bearing most clearly in Figure 4, saidbearing portion engaging the trunnion portion 28 and assisting in properly mounting the suspension link 20 for lateral motion with respect to the associated frame. The lower ends of the vertical portions 32 and 24 are connected by horizontal rocker portions 34, which are received in corresponding pocket portions 35 in the lower face of the associated end of the bolster 21 and present curved upper surfaces 36 for rocking on the engaging web portion 37 of the bolster 21. For receiving the spring cap and suspension link portions, the bolster is provided not only with the pockets 35 but also with side pockets 38 receiving the end portions 24 of the suspension link and the associated pedestal portions 15 of the ca as well as with an intermediate pocket 39 receiving the intermediate trunnion and bearing portions 28 and 33 on the cap and suspension link, respectively, resulting in a bifurcation of the end of the bolster as illustrated most portions 25 concavely curved to emclearly in Figures 1 and 5. The ends of the bifurcations of said bolster, however, are preferably rigidified by joining the same by a connecting end web 40, as shown most clearly in Figure 4.

The lower portions of said web 40 and the corresponding web 41 define the opposite sides of the pocket 39 and are preferably flared downwardly, as illustrated, to correspond with the flaring of the wall or pedestal portion 27 on the cap 13, and are spaced a sufficient distance from said pedestal portion to permit the desired lateral motion of the bolster. Said bolster 21 is not only limited in lateral motion by the spacing of the webs and 41 from the intermediate pedestal portion 27 but also by a spacing of the end of the bolster from the web 16 and the inner lugs 12 on the end of said bolster. The inner edge of the spring cap 13 is desirably, but not necessarily, provided with a depending flange or beading liiextend-V ing downwardly over the upper ends of the springs 9 but not interfering with the insertion of said springs which preferably takes place from the outside of the frame 1.

From the foregoing description, taken in connection with the accompanying drawings,

it will be seen that I have devised a truck in which provision is made for transverse movement of the bolster by suspending both ends of the bolster on links or lateral motion devices provided with upstanding arms swingingly mounted on walls or pedestals of an associated spring cap and with horizontal con necting portions rocking on the engaging face or lower web of the bolster. The bolster 1s desirably formed with an intermediate aperture and side pockets receiving the pedes tals and suspension link elements and on account of the bolster being raised when moved ther wav from normal position, said suspen sion links act as self-centering means for said bolster. Although only a portion of one side frame and one end of the bolster is shown, it will be understood that the other end of the bolster is similarly formed and connected to another side frame in the same manner.

Although I have described and claimed a bolster of the cast type in combination with devices for permitting lateral motion of said bolster, it is obvious that I do not wisl to be limited to such a type as, if desired, a bolster of the Huntoon or built-up type, such as shown and described in the companion application Serial No. 285, 17 2 filed of even date herewith, may be used instead of a cast bolster. This will be clear upon referring to said companion application in whicha builtup bolster is shown provided with an end casting formed to receive lateral motion devices and it will be clear that such a bolster may be employed with an end casting corresponding with the end of the cast bolster here illustrated, so that it should be understood that I' am not limited tothe use of the special form of bolster shown.

Although in the embodiment illustrated the trunnion or convex bearing portions are provided on the upstanding walls of pedestals of the spring cap and the concave bearing portions are provided on the lateral motion device orsuspension link, it is obvious that I do not wish to be limited to such details as, if desired, the concave bearing portions may be formed on the pedestals of the spring cap. and the trunnion or convex bearing portions may be provided on the suspension link or lateral motion device.

Having thus described my invention, I claim: I

.1. A railway truck having a side frame formed with compression and tension members, bolster guide columns connecting intermediate portions of said members, springs disposed between said columns, a spring cap associated with said frame and formed with pockets adjacent and between the columns thereof, swinging means suspended in said pockets, and a bolster supported on said swinging means and adapted to move laterally thereon. j i

2. A railway truck having a side frame formed with compression and tension members, bolster guide columns connecting intermediate portions of said members, springs disposed between saidcolumns, a spring cap resting on said springs and provided with upstanding walls forming a pocket therebetween and bearing means thereon, a suspension link formed with bearing portions engaging said bearing means and a depending U-shaped portion therebetween, and a bolster extendin above said U-shaped portion and cap and mounted on said link for lateral motion with respect to said frame.

3. A railway truckhaving a side frame formed with compression and tension members, bolster guide columns connecting inter-- mediate portions of said members, springs disposed between said columns, a spring cap resting onsaid springs and formed with up standing pedestals, a suspension link formed with upstanding side portions swinginglv mounted on said pedestals, and a connecting portion extending therebetwe'en, and a bolster with an end supported on said connecting portion for lateral motion with respect to said frame. i s

1. A railway truck having a side frame formed with compression and tension members, bolster guide columns connecting intermediate portions of said members, bolster springs disposed between said columns, a spring cap resting on saidsprings and formed with a plurality of upstanding pedestals with rounded upper ends, a swinging link formed with a horizontal bolstersupporting portion and upstanding sides with the upper portions concavely curved to correspond with the tions, the tops of curvature of the pedestal portions and engagin said pedestal portions for swinging there on, and a bolster supported on said link for lateral motion with respect to said frame.

5. In a railway truck, a side frame comprising a compression member, a tension member, bolster guide columns interposed therebetween and spaced to leave a window opening, that portion of the frame adjacent the junctions between the bolster guide columns and tension member being reinforced by auxiliary diagonal tension portions which cut across the lower corners of the window opening and are narrower than the adjacent portions of the tension member, bolster springs disposed on either side of and between said auxiliary members, a spring cap resting on said springs and formed with upstanding pedestal portions immediately over the auxiliary tension porsaid pedestals being rounded, a suspension link extending between said pedestal portions and formed with correspondingly curved end portions engaging said pedestal portions for swinging thereon, and a bolster supported on said link and adapted to move laterally with respect to said frame.

6. In a railway truck, a side frame comprising a compression member, a tension member, bolster guide columns interposed therebetween and spaced to leave a window opening, the construction adjacent the unctions between the bolster guide columns and tension member being r inforced by auxiliary diagonal tension members which cut across the lower corners oftlie window opemng, bolster springs supported onthe tension member on either side, of and between said auxiliary members, a spring cap restlng on said springs and formed with upstandlng pedestals immediately over and between the auxiliary diagonal tension members, a suspension link formed with end portions engaging the end pedestals on the cap and an 1ntermediate portion engaging the pedestal between the auxiliary tension portions and adapted to rock with respect thereto, and a bolster with a. bifurcated end embracing the intermediate portion of the suspension link and resting-on the connecting portions there of between said intermediate portion and end portions for lateral motion with respect to said frame. j

7. A railway truck having a side frame formed with a window opening, bolster prings disposed in said window opening, a

' spring cap interlocked withft he frame at each side of the opening resfing on said springs and formed with upstanding pedestal portions, a member with upstanding portions swin-gin-gly mounted on said pedestal portions and horizontal portionsconnecting said upstanding portions, and a bolster supported with resp on said horizontal portions and adapted to move laterally with respect to said frame.

8. A railway truck havinga side frame formed with compression and tension members, bolster guide columns connecting intermediate portions of said members, springs disposed between said columns, a spring cap associated with said frame and formed with upstanding pedestals adjacent the columns thereof, bolster supporting means swingingly mounted on said pedestals, and a bolster supported on said supporting means for lateral movement with respect to said frame.

9. A railway truck having a side frame formed with compression and tension members, bolster guide columns connecting intermediate portions of said members, springs disposed between said columns, a spring cap resting on said springs and provided with upstanding end walls and an intermediate wall formin pockets therebetween and trunnion means thereon, a suspension link formed With bearing portions engaging said trunnion means and depending U-shaped portions therebetween, and a bolster extending above said U-shaped portions and cap and mounted on said U-shaped portions for lateral'motion ct to said frame.

10. A railway truck having a side frame formed with compression and tension members, bolster guide columns connecting intermediate portions of a spring cap resting on said springs and formed with upstanding pedestals, a suspension link formed with upstanding side portions swingingly mounted on said pedestals, and a connecting portion presenting a curved upper surface extending therebetween, and a bolster with an upwardly offset bottom wall adjacent the end thereof supported on said connecting portion for lateral motion with respect to said frame, said connecting portion of the link rocking on the engaged bolster wall upon lateral motion thereof.

11. A railway truck having a side frame formed with compression and tension members, bolster guide columns connecting intermediate portions of said members, bolster springs disposed between said columns, .a spring cap restingon said springs and formed with a plurality of upstanding pedestals with convexly rounded upper ends, a swinging link formed with a horizontal bolster supporting portion and upstanding'sides with the upper portions concavely curved to cor respond with the curvature ofthe pedestal portions and engaging said pedestal portions for swinging thereon, and a bolster with the sides thereof pocketed for receiving the adj acent pedestals and upstanding sides of the link and supported on said link for lateral motion with respect to said frame.

12. In a railway'truck, a side frame comprising .a compression member, a tension said members, springs disposed between said columns,

member, bolster guide columns interposed therebetween and spaced to leave a window opening, bolster springs disposed between said guide columns, a spring cap resting on said springs and formed with upstanding pedestal portions immediately adjacent said guide columns, the tops of said pedestals being curved, a suspension link extending between said pedestal portions and formed with 10 curved end portions interfitting with said pedestal portions for swinging thereon, and

a bolster supported on said link and adapted to move laterally with respect to said frame.

13. In a railway truck, a side frame com- 15 prising a compression membenatensionmenr ber, bolster guide columns interposed therebetween and spaced to leave a window opening, bolster springs supported on the tension member between said guide columns, a as spring cap resting on said springs and formed with upstanding pedestals immediately adjacent and between the bolster guide columns, a suspension link formed with end portions engaging the end pedestals on the cap and an intermediate portion embracing and engaging the pedestal between the auxiliary tension portions and adapted to angle with respect thereto, and a bolster'with a pocketed end receiving the intermediate 30 portion of thesuspension link and associated pedestal and resting on the connecting portions of said link between said intermediate portion and end portions for lateral motion with respect to said frame.

14. A railway truck having a side frame formed with a window opening, bolster springs disposed in said window opening, a spring cap interlocked with the frame at each side of the opening resting on said 40 springs and formed with upstanding pedestal portions, a member with upstanding portions swingingly mounted on said pedestal portions and horizontal rocker portions connecting said upstanding portions, and a bol- 5 ster supported on said horizontal portions and providing a rocker engaging surface adapted to provide for lateral movement of the bolster with respect to said frame.

15. A railway truck comprising a bolster so formed with bifurcated ends in combination with lateral motion means fitting between and supporting the end portions.

In testimony whereof I alfix my signature.

DONALD S. BARROWS. 

